so my superdrive isn't working. I'm looking to put one or two replacement drives in, just something dirt cheap. But given its Apple, i suspect there may be some specific requirement i should know about. so, do Mac Pro's require any specific types of drives? i can tell it should be Sata CD drives but does the speed/version of Sata matter? does the CD drive dimensions matter from any of the usual sizes? i rarely use it, but i cannot get bootcamp installed on the Mac Pro, it does not detective the disc in my external Blu Ray drive at all, even though the system detects the drive/cd.